640421376
640,421,376 is an even composite number composed of five prime numbers multiplied together.
640421376 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 640421376:
29 × 3 × 72 × 67 × 127
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 7 × 67 × 127)See below for interesting mathematical facts about the number 640421376 from the Numbermatics database.
Names of 640421376
- Cardinal: 640421376 can be written as Six hundred forty million, four hundred twenty-one thousand, three hundred seventy-six.
Scientific notation
- Scientific notation: 6.40421376 × 108
Factors of 640421376
Divisors of 640421376
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 67 84 96 98 112 127 128 134 147 168 192 196 201 224 254 256 268 294 336 381 384 392 402 448 469 508 512 536 588 672 762 768 784 804 889 896 938 1016 1072 1176 1344 1407 1524 1536 1568 1608 1778 1792 1876 2032 2144 2352 2667 2688 2814 3048 3136 3216 3283 3556 3584 3752 4064 4288 4704 5334 5376 5628 6096 6223 6272 6432 6566 7112 7504 8128 8509 8576 9408 9849 10668 10752 11256 12192 12446 12544 12864 13132 14224 15008 16256 17018 17152 18669 18816 19698 21336 22512 24384 24892 25088 25527 25728 26264 28448 30016 32512 34036 34304 37338 37632 39396 42672 45024 48768 49784 51054 51456 52528 56896 59563 60032 65024 68072 74676 75264 78792 85344 90048 97536 99568 102108 102912 105056 113792 119126 120064 136144 149352 157584 170688 178689 180096 195072 199136 204216 210112 227584 238252 240128 272288 298704 315168 341376 357378 360192 398272 408432 416941 420224 455168 476504 544576 597408 630336 682752 714756 720384 796544 816864 833882 840448 953008 1089152 1194816 1250823 1260672 1365504 1429512 1593088 1633728 1667764 1680896 1906016 2178304 2389632 2501646 2521344 2859024 3186176 3267456 3335528 3812032 4356608 4779264 5003292 5042688 5718048 6534912 6671056 7624064 9558528 10006584 11436096 13069824 13342112 15248128 20013168 22872192 26684224 30496256 40026336 45744384 53368448 80052672 91488768 106736896 160105344 213473792 320210688 640421376
- Sum of all divisors σ(n): 2030155776
- Sum of proper divisors (its aliquot sum) s(n): 1389734400
- 640421376 is an abundant number, because the sum of its proper divisors (1389734400) is greater than itself. Its abundance is 749313024
Bases of 640421376
- Binary: 1001100010110000001110000000002
- Hexadecimal: 0x262C0E00
- Base-36: ALAGAO
Squares and roots of 640421376
- 640421376 squared (6404213762) is 410139538837733376
- 640421376 cubed (6404213763) is 262662127814466649379045376
-
The
square root of 640421376 is 25306.5480854265 -
The
cube root of 640421376 is 861.9629651601
Scales and comparisons
How big is 640421376?- 640,421,376 seconds is equal to 20 years, 18 weeks, 6 days, 6 hours, 49 minutes, 36 seconds.
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To count from 1 to 640,421,376 would take you about thirty years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 640421376 cubic inches would be around 71.8 feet tall.
Recreational maths with 640421376
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